C c d c a b a a a c b b b a a
Answer:
For background reading, the most helpful option would be to research Option A: reading the various theories for why doughnuts are called "doughnuts."
Explanation:
The history of the doughnut is contested because many cultures have a food that involves a practice of frying some version of sweetened dough as a dessert or a snack. For example, in Spain (and many Latin American countries) there is the churro, and the tradition of making sufganiyot goes back centuries in the Mizrahi Jewish culture. With the focus on doughnuts from the start you would gain some valuable background information to start researching your paper. Many doughnut aficionados believe the American doughnut was adapted from Dutch immigrants in New York who made their traditional oliebollen.
I would say the first one, but im not sure if im right. hope it helps
<u>Answer:</u>
Eradicating smallpox was successful because of many reasons.
<u>Explanation:</u>
Smallpox was regularly found in an area or we can say it was prevalent in some places. So, mortality rates were high. It was caused by variola virus and affected mainly humans. So, it was essential that such vaccine is developed which can successfully immune people from this disease.
Smallpox vaccine then started spreading across "Europe and North America" and then gradually it spread all over the world and successfully eradicated smallpox by 1980. Other diseases that have been controlled by vaccines are “diphtheria, bacterial influenza, measles, mumps, rubella, and tetanus”.
